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Diffstat (limited to 'skia/sgl/SkEdge.h')
-rw-r--r-- | skia/sgl/SkEdge.h | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/skia/sgl/SkEdge.h b/skia/sgl/SkEdge.h deleted file mode 100644 index 5b0cc75..0000000 --- a/skia/sgl/SkEdge.h +++ /dev/null @@ -1,93 +0,0 @@ -/* libs/graphics/sgl/SkEdge.h -** -** Copyright 2006, The Android Open Source Project -** -** Licensed under the Apache License, Version 2.0 (the "License"); -** you may not use this file except in compliance with the License. -** You may obtain a copy of the License at -** -** http://www.apache.org/licenses/LICENSE-2.0 -** -** Unless required by applicable law or agreed to in writing, software -** distributed under the License is distributed on an "AS IS" BASIS, -** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -** See the License for the specific language governing permissions and -** limitations under the License. -*/ - -#ifndef SkEdge_DEFINED -#define SkEdge_DEFINED - -#include "SkRect.h" - -struct SkEdge { - enum Type { - kLine_Type, - kQuad_Type, - kCubic_Type - }; - - SkEdge* fNext; - SkEdge* fPrev; - - SkFixed fX; - SkFixed fDX; - int32_t fFirstY; - int32_t fLastY; - int8_t fCurveCount; // only used by kQuad(+) and kCubic(-) - uint8_t fCurveShift; // appled to all Dx/DDx/DDDx except for fCubicDShift exception - uint8_t fCubicDShift; // applied to fCDx and fCDy only in cubic - int8_t fWinding; // 1 or -1 - - int setLine(const SkPoint& p0, const SkPoint& p1, const SkIRect* clip, - int shiftUp); - inline int updateLine(SkFixed ax, SkFixed ay, SkFixed bx, SkFixed by); - void chopLineWithClip(const SkIRect& clip); - - inline bool intersectsClip(const SkIRect& clip) const { - SkASSERT(fFirstY < clip.fBottom); - return fLastY >= clip.fTop; - } - -#ifdef SK_DEBUG - void dump() const { - #ifdef SK_CAN_USE_FLOAT - SkDebugf("edge: firstY:%d lastY:%d x:%g dx:%g w:%d\n", fFirstY, fLastY, SkFixedToFloat(fX), SkFixedToFloat(fDX), fWinding); - #else - SkDebugf("edge: firstY:%d lastY:%d x:%x dx:%x w:%d\n", fFirstY, fLastY, fX, fDX, fWinding); - #endif - } - - void validate() const { - SkASSERT(fPrev && fNext); - SkASSERT(fPrev->fNext == this); - SkASSERT(fNext->fPrev == this); - - SkASSERT(fFirstY <= fLastY); - SkASSERT(SkAbs32(fWinding) == 1); - } -#endif -}; - -struct SkQuadraticEdge : public SkEdge { - SkFixed fQx, fQy; - SkFixed fQDx, fQDy; - SkFixed fQDDx, fQDDy; - SkFixed fQLastX, fQLastY; - - int setQuadratic(const SkPoint pts[3], const SkIRect* clip, int shiftUp); - int updateQuadratic(); -}; - -struct SkCubicEdge : public SkEdge { - SkFixed fCx, fCy; - SkFixed fCDx, fCDy; - SkFixed fCDDx, fCDDy; - SkFixed fCDDDx, fCDDDy; - SkFixed fCLastX, fCLastY; - - int setCubic(const SkPoint pts[4], const SkIRect* clip, int shiftUp); - int updateCubic(); -}; - -#endif |